Performance spread reduction in organic field-effect transistors using semiconducting liquid-crystal polymers

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Kornelius Tetzner - , Technical University of Berlin (Author)
  • Warren Duffy - , Flexink Ltd. (Author)
  • Karlheinz Bock - , Technical University of Berlin, Fraunhofer Research Institution for Microsystems and Solid State Technologies (EMFT) (Author)

Abstract

We report on a semiconducting liquid-crystal polymer (LCP) for organic field-effect transistors (OFET) showing comparable charge carrier mobilities to 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-PEN) on same test structures using organic dielectrics. In addition, we demonstrate a spread reduction of the OFET parameters by using the LCP allowing the fabrication of transistor devices in a simple processing procedure with a high reproducibility compared to TIPS-PEN, which is essential for the functionality of organic integrated circuits. Investigations of the molecular structure of the LCP reveal a high ordering of the molecules even in the liquid phase which further improves after annealing.

Details

Original languageEnglish
Article number093304
JournalApplied physics letters
Volume103
Issue number9
Publication statusPublished - 26 Aug 2013
Peer-reviewedYes
Externally publishedYes

External IDs

ORCID /0000-0002-0757-3325/work/139064941